Embodiments of the present invention provide a milling system and method thatprovides a precise triangular cut in a patient's proximal femur. The systemallows the surgeon to mill in a single direction, that is, the drill is in the sameor similar longitudinal place as the handle of the milling system, preventingthe surgeon from having to enter the patient's leg at two different angles.The present invention also provides a milling system that can be pre- assembled(e.g., on the back table by a nurse while the surgeon is preparing the site), whichenables the milling to take place in one step.